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Finding the Fourth Proportional to 171,658.44, 257,662.62 and 118,353.96

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Solution

The fourth proportional to 171,658.44, 257,662.62 and 118,353.96 is: 177,651.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,658.44 : 257,662.62 = 118,353.96 : x
  2. Step 2: Convert to fraction form
    171,658.44/257,662.62 = 118,353.96/x
  3. Step 3: Cross multiply
    171,658.44x = 257,662.62 × 118,353.96
  4. Step 4: Simplify right side
    171,658.44x = 30,495,391,420.98
  5. Step 5: Solve for x
    x = 30,495,391,420.98/171,658.44
  6. Step 6: Final answer
    x = 177,651.57

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.